Home / 717,653.72-1,075,741.26-318,482.48

Finding the Fourth Proportional to 717,653.72, 1,075,741.26 and 318,482.48

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Solution

The fourth proportional to 717,653.72, 1,075,741.26 and 318,482.48 is: 477,395.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,653.72 : 1,075,741.26 = 318,482.48 : x
  2. Step 2: Convert to fraction form
    717,653.72/1,075,741.26 = 318,482.48/x
  3. Step 3: Cross multiply
    717,653.72x = 1,075,741.26 × 318,482.48
  4. Step 4: Simplify right side
    717,653.72x = 342,604,745,818.17
  5. Step 5: Solve for x
    x = 342,604,745,818.17/717,653.72
  6. Step 6: Final answer
    x = 477,395.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.